Coldest spot in known universe: NASA to study almost absolute zero matter at ISS

NASA has revealed its plans to create the coldest spot in the known universe on board the International Space Station in 2016. The researchers are preparing to study matter at temperatures near absolute zero, revealing the world of quantum mechanics.

The US space agency has announced that its researchers are
currently working on the Cold Atom Laboratory , “the coolest spot
in the universe”, which will be ready for installation
inside the International Space Station by December 2015.

There are several reasons underlying the scientific drive to
explore characteristics and qualities of matter in conditions
that are difficult to replicate on Earth. Space’s low
temperatures, unattainable in terrestrial laboratories, reveal
the wave nature of atoms, as well as possibly new phenomena. The
absence of gravity additionally allows such experiments to last
longer – up to 20 seconds.

“We’re going to study matter at temperatures far colder than
are found naturally,”said the project’s head scientist Rob
Thompson of Jet Propulsion Laboratory (JPL)."We aim to push
effective temperatures down to 100 pico-Kelvin."

One hundred pico-Kelvin is remarkable in that it is a mere ten
billionth of a degree above absolute zero (0K or −273.15°C) – a
point on an imaginary thermometer where all thermal activity of
atoms theoretically halts. When temperatures are so low, our
traditional ideas of atomic behavior cease to apply. The matter
is no longer solid, liquid or gas – its atoms tend to create
quantum forms of matter.

Quantum mechanics is a branch of physics that describes intricate
and bizarre light and matter rules on an atomic scale. It is a
wonderland where nothing is certain, where objects behave both as
particles and as waves, and where matter can be in two places at
once. “We’re entering the unknown,” said Thompson.

With the help of the Cold Atom Lab, the researchers will be able
to conduct many exciting experiments.

“We’ll begin by studying Bose-Einstein Condensates,” he
said. “The Cold Atom Lab will allow us to study these objects
at perhaps the lowest temperatures ever.”

The condensates, named after Satyendra Bose and Albert Einstein,
who predicted them in the beginning of the 20th century, were, in
fact, discovered only in 1995. And in 2001, Eric Cornell and Carl
Wieman shared the Nobel Prize with Wolfgang Ketterle for their
independent discovery of the intriguing capacity of rubidium and
sodium atoms to form a single wave of matter when cooled to
temperatures slightly above the absolute zero threshold.

The researches, planned by NASA, are aimed at studying ultra-cold
quantum gases in the microgravity of the ISS besides other
experiments.

The technology, which would allow such experiments, includes an
atom chip with on-window wires that enable simultaneous magnetic
trapping and optical manipulation, in addition to compound
silicon and glass substrate technology that leads to both
magnetic and optical control of ultra-cold atoms.

The Cold Atom Lab, which actually is designed “for use by
multiple investigators” and is “upgradable and
maintainable on orbit,” is scheduled to be launched inside
the ISS in early 2016, where it will be able to function for 5
years.